class_docstr: Base class for BatchMatMult tests.
code: def setUpClass(cls):
      if cls is BatchMatMultTestBase:
          raise unittest.SkipTest(
              "BatchMatMultTestBase defines base class for other test."
          )
      super(BatchMatMultTestBase, cls).setUpClass()
  
imports: import unittest
  import numpy
  from tensorflow.python.compiler.tensorrt.test import tf_trt_integration_test_base
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import nn
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the BatchMatMultTestBase obj's underlying member method code with example usage: obj.setUpClass(cls) without return types